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Tiny Tubes
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In this activity, learners make "totally tubular" forms of carbon. Learners use chicken wire to build macro models of carbon nanotubes.

DNA Extraction
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In this activity related to plant biotechnology, learners extract DNA from fruit to investigate how it looks and feels.

Best Bubbles
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In this activity, learners experiment with creating various types of bubble solutions and testing which ingredients form longer-lasting bubbles.

Hull Engineering
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In this activity, learners explore how the hull shape impacts a ship's performance and stability.

African Arts
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In this two-day activity (on pages 16-22), learners use a process like that of the Yoruba people of Nigeria to create an African symbol on cloth.

Pulleys
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In this activity, learners build inexpensive pulley assemblies from pulley wheels used for sliding screen door replacement or from clothesline spreaders.

Jam Jar Jet
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In this activity, learners create a "Jam Jar Jet" based on Francois Reynst's discovery of a pulsejet engine, which uses one opening for both air intake and exhaust.

Water Clean-up
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This is an activity (located on page 3 of the PDF under Water Clean-up Activity) about the use of reduction agents to decontaminate ground water.

Surface Area and Soda Geysers
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This is an activity (located on page 4 of the PDF under Surface Area Activity) about surface area and reactivity.

Solar Structures
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In this activity, learners explore how the power of the sun can be harnessed to heat and cool a building.

Jell-O Model of Microfluidics
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This activity uses Jell-O(R) to introduce learners to microfluidics, the flow of fluids through microscopic channels.

Electric Paddle Boat
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In this activity, learners build an electric two-paddle boat using paint paddles, plastic knives, and empty water bottles.

Engineered Music
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In this activity, learners explore how musical instruments are engineered.

Dunking the Planets
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

Gummy Shapes
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In this activity, learners use chemistry to “self-assemble” gummy shapes. Learners discover that self-assembly is a process by which molecules and cells form themselves into functional structures.

What's Hiding in the Air?: Acid Rain Activity
As a model of acid rain, learners water plants with three different solutions: water only, vinegar only, vinegar-water mixture.

Glowing in the Dark
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In this activity, learners explore phosphorescence and how certain materials can absorb and store energy from a light source.

Bottle Cars
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In this activity, learners explore motion, energy, and electricity by constructing bottle cars that run on motors.

Spectroscope
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In this activity (posted on March 12, 2011), learners follow the steps to construct a spectroscope, a tool used to analyze light and color.

Stop the Stretching
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Learners work with plastic sheeting, masking tape, and string to design the perfect material for plastic chair webbing, and then construct their webbing.